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Distributed Video Coding

Distributed Video Coding

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Distributed Video Coding

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  1. Distributed Video Coding 林明德

  2. Outline • DCT base DSC • DWT base DSC

  3. Quantizer & Bit-plane level Quantizer Extract bit plane

  4. Interpolation & Extrapolation

  5. Test Image 512*512 mobile0.raw 512*512 mobile1.raw

  6. Wyner-Ziv Frame • Wavelet transform : 9/7 filter • Level : 2 • Quantization : 64 bins Key-Frame • Wavelet transform : 9/7 filter • Level : 5 • Bit-rate : 2 bpp

  7. Wavelet Transform (2 level)LL band size = 128*128 • Quantizer (6 bits) 64 bins = 0~63 • Bit-planes number = 6 (length=16384)

  8. Passable Solution • Gray Code • High frequency motion estimation

  9. Gray Code

  10. High Frequency Motion Estimation